Follow these simple steps to create your Strawberry Jelly Cheesecake:

1. Preheat Oven: Preheat your oven to 325°F (160°C).
2. Prepare the Crust: In a medium bowl, combine graham cracker crumbs and melted butter. Mix until well combined. Press the mixture into the bottom of a 9-inch springform pan.
3. Bake the Crust: Bake the crust in the preheated oven for about 10 minutes. Remove and let it cool.
4. Make the Cheesecake Filling: In a large bowl, beat the softened cream cheese until smooth. Gradually add sugar and vanilla extract, mixing until well combined.
5. Add Eggs: Add eggs one at a time, mixing well after each addition. Ensure the mixture is smooth and creamy.
6. Pour into Crust: Pour the cheesecake filling over the cooled crust, spreading it evenly.
7. Bake the Cheesecake: Bake in the oven for 15-20 minutes, or until the center is set but still slightly jiggly. Remove from the oven and let it cool.
8. Chill the Cheesecake: Once cooled, refrigerate the cheesecake for at least 2 hours or until fully chilled.
9. Prepare the Strawberry Jelly: In a saucepan, combine sliced strawberries, water, sugar, and lemon juice. Heat until boiling, then reduce heat and simmer for about 5 minutes.
10. Dissolve Gelatin: In a small bowl, mix gelatin with cold water, allowing it to bloom for a few minutes. Then add it to the strawberry mixture, stirring until fully dissolved.
11. Cool the Jelly: Remove the mixture from heat and let it cool to room temperature.
12. Top the Cheesecake: Once the cheesecake is chilled, pour the strawberry jelly mixture over the top, spreading it evenly.
13. Refrigerate Again: Return the cheesecake to the refrigerator for at least 1 hour to allow the jelly to set completely.
14. Serve: Once the jelly is set, carefully remove the springform pan. Slice and serve chilled.

Following these steps will guide you in creating an incredible Strawberry Jelly Cheesecake that is sure to impress.